F06.4
ICD-10BillableAnxiety disorder due to known physiological condition
Official ICD-10-CM descriptor (FY2026)
Anxiety disorder due to known physiological condition
F06.4 is valid for submission on a claim — CMS flags it as a billable, specific code.
Excludes2
Not included here. The condition is not part of this code, but a patient may have both, and both codes may be reported together.
- anxiety disorders due to alcohol and other psychoactive substances (F10-F19 with .180, .280, .980)
- anxiety disorders, not due to known physiological condition or unspecified (F40.-, F41.-)
Related codes in F06
- F06.0Psychotic disorder w hallucin due to known physiol condition
- F06.1Catatonic disorder due to known physiological condition
- F06.2Psychotic disorder w delusions due to known physiol cond
- F06.3Mood disorder due to known physiological conditioncategory
- F06.7Mild neurocog disorder due to known physiological conditioncategory
- F06.8Oth mental disorders due to known physiological condition
Where this code sits
- Parent code
- F06
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.